Need advice STAT!!!!!!!!

Hey fellow travelers and anyone who is viewing.

I am 3 weeks into a contract at a certain hospital, which appearantly will remain nameless. My delima is this, I contracted for a specific unit for 36 hours a week with blocked scheduling (3 days in a row). So far, I have been assigned to a different unit than contracted to, I am having to fight tooth and nail to get my days in a row, (I drive back home after my days are done for the week since I only live 2 1/2 hours away) and now I find out last week that they expect me to work 36 hours one week and 48 the next!! I have contacted my recruiter several times and the company is supposed to be working on it, I have spoken with the nurse manager at least 2 days each week and I am told that "I'll take care of it" by the NM. My question is this, has the facility not breached the contract 3 times already? Someone with more expertise on these situations please advise me. And if they have breached it, what are my recourses available to me? I have told my recruiter that I am willing to finish out the contract if they will get me 36 hours a week AND get the days in a row. I have already been incontact with another compaony and have a possible job opportunity set up. I was advised by the other company if I decide to leave this contract to give at least 2 weeks notice. Any suggestions? Sorry for being so longwinded. Thanks.